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Rear panel features
On Master Module Rear Panel
Ext TB In connector
This bal XLR connector allows an external signal to be fed into the Talkback sec-
tion. From there, it can be routed to any of the outputs that are fed by the TB bus.
The Ext TB output from the FOH console can be patched into here to allow the
FOH engineer to communicate with the stage.
Ext TB Out connector
This bal XLR connector can feed the internal TB signal to the outside world.Used
in conjunction with the Ext TB In & Out of the FOH console,a two-way system can
be set up to allow the Monitoring position to communicate with the FOH position.
On Group Module 9-12 Rear Panel
Lamp Dim
This switch controls the intensity of the external little-lites plugged into the
rear of the meterbridge. In the UP position- full voltage is applied to the jacks.The
lamp-jacks are current limited to prevent accidents.
In the DOWN position- voltage is applied to the lamp-jacks thru dropping
resistors.
Meterbridge Connector
This 34-way socket connects to the meterbridge.The 14 meter signals(Groups 1-12, Solo
L-R) are carried to the meterbridge as audio signals, they are rectified to drive the meters
within the bridge.Power for the meter illumination (LED) as well as for the little-lites is also
provided.All power feeds are current-limited.
Midi IN and OUT
These jacks allow the microprocessor system to communicate with MIDI gear.See the sec-
tion on the Microprocessor for more information.Standard MIDI cabeling should be used.
DC In
This 7-pin connector is used to connect the power supply DC cable to the console.ONLY
Crest approved power supplies should be used.A 25 ft DC cable is normally supplied with
the console. If two or more supplies are used for redundant operation,a separate 3 ft DC-
Linking cable is used to tie power supplies together.
p.47
Master section
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